Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - Flx.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30676-32b8a71ec1) Lines: 2553 2925 87.3 %
Date: 2026-02-14 09:22:40 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_Xp1_powu 0
Flv_prod 0
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_neg 0
FlxC_sub 0
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_neg 0
FlxM_sub 0
FlxM_to_FlxXV 0
FlxV_Flx_fromdigits 0
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_composedprod 0
Flx_convol 0
Flx_digits 0
Flx_halfgcd 0
Flx_integ 0
Flx_invBarrett 0
Flx_matFrobenius 0
Flx_powu 0
Flx_recip 0
Flx_unscale 0
Flxn_exp 0
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqM_Flxq_mul 0
FlxqV_dotproduct 0
Flxq_autsum 0
Flxq_auttrace 0
Flxq_is2npower 0
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_pow_init 0
Flxq_pow_table 0
ZXV_to_FlxV 0
Z_mod2BIL_Flx_3 0
_Flx_add 0
_Flx_divrem 0
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
kron_pack_Flx_spec_3 0
kron_unpack_Flx_3 0
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
Flxq_autpow 7
RgXV_to_FlxV 7
matJ2_FlxM 13
Flxq_conjvec 20
Flxq_pow_init_pre 28
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
_Flxq_powu 68
Flx_sqrspec_halfsqri 136
Flx_halfgcd_all 154
Flxq_matrix_pow 399
ZpX_invLaplace_init 497
matid2_FlxM 911
Flxn_inv 1037
Flx_halfres_pre 1044
Flx_rescale 1117
Flxq_autpowers 1667
FlxqX_dotproduct 1918
Flx_sqrspec_sqri 2070
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxM_to_ZXM 2485
Flm_to_FlxV 2772
kron_unpack_Flx_2 2930
kron_pack_Flx_spec_2 3389
Flxq_charpoly 3625
Flv_prod_pre 3719
_Flx_composedsum 3882
Flx_powu_pre 3916
Flxq_pow_table_pre 4393
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6550
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8100
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9645
Flx_mulspec_mulii 10141
Flx_sqrspec_quartsqri 10218
Flx_Fl2_eval_pre 10773
Flx_sqrspec_sqri_inflate 11814
Flv_inv_inplace 12017
zl_Xp1_powu 12017
int_to_Flx 12216
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14393
Flx_translate1 17054
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23095
Flx_invBarrett_Newton 23161
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27340
Flx_composedsum 27550
FlxV_composedsum 28961
Flx_translate1_basecase 29138
Flx_mod_Xn1 31510
FlxV_Flc_mul 34482
Fl_Flxq_log 35546
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42307
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47313
Flv_inv_indir 52211
kron_pack_Flx_spec 53168
Flx_Newton 54102
Flx_invLaplace 54356
Flxn_div 56296
Flxn_div_pre 56334
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69450
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75830
Fl2_sqrtn_pre 76078
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86566
Flx_Frobenius 86618
Flx_mulspec_quartmulii 97166
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104560
Flxq_autsum_sqr 105110
int_to_Flx_quart 107385
Flx_fromNewton 109398
Flxn_expint 109399
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113905
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 117855
Flx_is_smooth_squarefree 125945
Fl2_norm_pre 127607
Flx_invBarrett_basecase 134389
Flx_extgcd_halfgcd 146653
Flx_splitting 147320
Flx_Fl_sub 151679
Flv_invVandermonde 153445
Flx_invBarrett_pre 158849
Flx_inflate 160057
Flxq_log 164210
Flxq_matrix_pow_pre 170661
FlxV_to_Flm 171873
Fl2_inv_pre 197202
Flx_to_int_quartspec 204552
Flxq_sumautsum_pre 210713
Flxn_recip 217266
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232009
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283439
Flx_mulspec_mulii_inflate 294038
FlxT_red 294066
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305852
Z_mod2BIL_Flx_2 308782
FlxC_eval_powers_pre 325152
Flxq_inv 335765
Flx_sqr 354680
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395369
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416800
Flx_deflate 420767
Flx_integXn 422725
Flxq_norm 443140
Fl2_equal1 449740
Flx_to_int_halfspec 468590
Flxq_powu 488328
int_to_Flx_half 507058
Flxq_easylog 519363
Flxn_mulhigh 525893
Flx_blocks 525977
Flx_eval2BILspec 603279
Flx_divrem_Barrett 604579
FlxV_to_ZXV 606834
Flxq_auttrace_sqr 652802
Flxq_invsafe 670401
_Fl2_pow 671448
Fl2_pow_pre 671459
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695047
Flxq_auttrace_mul 780100
Flx_Flxq_eval 791309
Flxq_minpoly_pre 809752
Flv_roots_to_pol 842086
Flx_extgcd 856741
Flx_halfgcd_pre 873261
Flx_subspec 898657
Flx_divrem_Barrettspec 906237
monomial_Flx 941338
Flx_mulhigh_i 947514
Flxq_pow 948279
Flxq_auttrace_pre 959949
Flx_triple 1049261
Flx_halfgcd_all_i 1126919
Flx_halfgcd_all_pre 1126924
Flx_halfres_basecase 1133998
Flx_halfres_i 1153963
_Flxq_rmul 1461838
Flv_polint 1485194
_Flxq_red 1550928
Rg_to_F2 1710133
Flv_inv 1744475
Flv_producttree 1745681
Flxq_transmul_init 1746480
Flv_inv_i 1756480
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785981
Flx_red 1879834
_Fl2_mul 1924728
Fl2_mul_pre 1953773
Flx_lgrenormalizespec 2134253
RgX_to_Flx 2205407
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444605
FlvV_polint_tree 2587500
random_Flx 2646133
Flxq_sqr 2763152
FlxV_to_ZXV_inplace 3031568
Flx_negspec 3264117
Flx_neg 3264129
Rg_to_Flxq 3588264
Flx_addshift 3729093
ZXT_to_FlxT 3812940
Flxq_transmul 4212874
Flxq_inv_pre 4286529
Flx_val 4470381
Flx_resultant 4731504
Flx_mod_Xnm1 4907570
Fl2_sqr_pre 4912798
_Fl2_sqr 4912832
Flxn_mul_pre 5177819
Flxq_invsafe_pre 5429521
kron_unpack_Flx_bits_narrow 5663373
kron_unpack_Flx_bits_wide 5669896
Flx_extgcd_pre 6286266
Flx_extgcd_basecase 6286295
Flxn_red 6358430
zx_to_Flx 6394701
Flx_addspec 7259598
Flx_recipspec 7288743
mkF2 7327037
Flx_Fl_mul 7327062
Flx_mulspec_Kronecker 7355611
Z_to_Flx 7556616
maxbitcoeffpol 8484604
Flx_is_squarefree 9180975
Flx_Fl_add 9845836
_Flx_mul 11781933
Flx_Fl_mul_to_monic 11856141
Flx_blocks_Flm 12967762
FlxV_to_Flm_lg 12968610
Flx_FlxqV_eval_pre 13167485
Flxq_mul 13192565
Flx_Frobenius_pre 13813377
Flx_get_red 14504003
Flx_resultant_basecase_pre 14596453
Flx_resultant_pre 14598495
Flx_Fl_mul_pre 18289763
Flv_inv_pre_inplace 19348402
Flx_eval 20442180
kron_pack_Flx_spec_bits 20997196
Flv_inv_pre_indir 21082582
Fl_to_Flx 21947275
Flxq_powers_pre 22437475
_Flxq_one 22437965
_Flxq_powu_i 22921213
Flx_deriv 22980301
_Flxq_pow 23117870
Flxq_pow_Frobenius 23125278
Flxq_powu_pre 24175448
Flxq_pow_pre 24188825
Flv_to_Flx 25487134
Flx_shift 27395043
Flx_equal 27674548
Flx_mul 27788789
Flx_valrem 28470983
Flx_divrem 30444019
Flx_gcd 35013832
Flx_to_ZX_inplace 36546655
Flx_div_by_X_x 36574376
Flx_to_ZX 38298573
Flx_rem 42226208
Flx_eval_powers_pre 48564859
Flx_divrem_basecase 62280644
Flx_normalize 64808113
Flx_add 66125028
Flx_to_Flv 66644381
set_Flxq_pre 70103155
Rg_to_Fl 72936883
Flx_divrem_pre 79720446
Flx_gcd_basecase 85766643
Flx_gcd_pre 87429852
Flx_get_red_pre 97852549
Flx_eval_pre 136186719
Flx_sub 138645252
_Flxq_mul 148376861
ZX_to_Flx 170987545
Flxq_mul_pre 189590660
_Flxq_sqr 268479881
Flxq_sqr_pre 276393903
Flx_sqrspec_basecase 276672282
Flx_sqr_pre 277347696
Flx_sqrspec 277505599
Flx_mulspec_basecase 348667837
Flx_mul_pre 380873076
Flx_mulspec 386470037
Flx_shiftip 634611876
Flx_rem_basecase 801123474
Flx_rem_pre 925151082
get_Flx_red 989212351
Flx_mullimb 1187475080
Flx_renormalize 2156544879
get_Fl_threshold 2333473368
Flx_mullimb_ok 3396377784

Generated by: LCOV version 1.16