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 30674-be81ecfdd4) Lines: 2553 2925 87.3 %
Date: 2026-02-12 09:23:52 Functions: 304 363 83.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl2_equal1 450256
Fl2_inv_pre 197481
Fl2_mul_pre 1953108
Fl2_norm_pre 127611
Fl2_pow_pre 672164
Fl2_sqr_pre 4907060
Fl2_sqrt_pre 65849
Fl2_sqrtn_pre 76069
Fl_Flxq_log 35549
Fl_Xp1_powu 0
Fl_to_Flx 21953001
Flm_to_FlxV 2772
FlvV_polint_tree 2587227
Flv_Flm_polint 104559
Flv_inv 1744438
Flv_invVandermonde 153445
Flv_inv_i 1756442
Flv_inv_indir 52210
Flv_inv_inplace 12017
Flv_inv_pre 9643
Flv_inv_pre_indir 21067450
Flv_inv_pre_inplace 19330047
Flv_polint 1485189
Flv_prod 0
Flv_prod_pre 3719
Flv_producttree 1745669
Flv_roots_to_pol 841814
Flv_to_Flx 25488715
FlxC_Fl_translate 0
FlxC_FlxqV_eval 0
FlxC_FlxqV_eval_pre 0
FlxC_Flxq_eval 0
FlxC_Flxq_eval_pre 0
FlxC_eval_powers_pre 325159
FlxC_neg 0
FlxC_sub 0
FlxC_to_ZXC 104060
FlxM_Fl_translate 0
FlxM_Flx_add_shallow 0
FlxM_Flx_mul2 25999
FlxM_eval_powers_pre 22302
FlxM_max_degree 0
FlxM_max_degree_i 0
FlxM_mul 0
FlxM_mul2 7099
FlxM_mul_Kronecker_i 81581
FlxM_neg 0
FlxM_pack_ZM 46835
FlxM_pack_ZM_bits 116239
FlxM_sub 0
FlxM_to_FlxXV 0
FlxM_to_ZXM 2485
FlxT_red 295191
FlxV_Flc_mul 34482
FlxV_Flv_multieval 2471
FlxV_Flv_multieval_tree 2471
FlxV_Flx_fromdigits 0
FlxV_composedsum 28963
FlxV_factorback 0
FlxV_max_degree_i 0
FlxV_prod 0
FlxV_red 0
FlxV_to_Flm 171861
FlxV_to_Flm_lg 12969181
FlxV_to_FlxX 397977
FlxV_to_ZXV 606840
FlxV_to_ZXV_inplace 3031576
Flx_Fl2_eval_pre 10773
Flx_Fl_add 9847160
Flx_Fl_mul 7327818
Flx_Fl_mul_pre 18290145
Flx_Fl_mul_to_monic 11857251
Flx_Fl_sub 151680
Flx_Fl_translate 0
Flx_Flv_multieval 0
Flx_Flv_multieval_tree 1785948
Flx_FlxM_qmul 6927
Flx_FlxqV_eval 5082
Flx_FlxqV_eval_pre 13168053
Flx_Flxq_eval 791303
Flx_Flxq_eval_pre 2444572
Flx_Frobenius 86619
Flx_Frobenius_pre 13813213
Flx_Laplace 27331
Flx_Newton 54094
Flx_add 66140062
Flx_addmulmul 416793
Flx_addshift 3729093
Flx_addspec 7259598
Flx_blocks 526239
Flx_blocks_Flm 12968891
Flx_composedprod 0
Flx_composedsum 27548
Flx_convol 0
Flx_deflate 420782
Flx_deriv 22980510
Flx_diff1 14391
Flx_digits 0
Flx_div_by_X_x 36589692
Flx_divrem 30444730
Flx_divrem_Barrett 604865
Flx_divrem_Barrettspec 906423
Flx_divrem_basecase 62269171
Flx_divrem_pre 79716633
Flx_double 2443925
Flx_equal 27829429
Flx_eval 20449400
Flx_eval2BILspec 603275
Flx_eval_powers_pre 48609862
Flx_eval_pre 136187407
Flx_extgcd 856774
Flx_extgcd_basecase 6285505
Flx_extgcd_halfgcd 146655
Flx_extgcd_pre 6285539
Flx_extresultant 53
Flx_extresultant_basecase 53
Flx_extresultant_pre 53
Flx_fromNewton 109390
Flx_gcd 35021203
Flx_gcd_basecase 85787212
Flx_gcd_pre 87448798
Flx_get_red 14504095
Flx_get_red_pre 97994709
Flx_halfgcd 0
Flx_halfgcd_all 154
Flx_halfgcd_all_i 1126801
Flx_halfgcd_all_pre 1126804
Flx_halfgcd_pre 873272
Flx_halfres_basecase 1133878
Flx_halfres_i 1153846
Flx_halfres_pre 1044
Flx_halfres_split 19964
Flx_halfres_update_pre 9405
Flx_halve 14026
Flx_inflate 160815
Flx_integ 0
Flx_integXn 422788
Flx_invBarrett 0
Flx_invBarrett_Newton 23160
Flx_invBarrett_basecase 134390
Flx_invBarrett_pre 158849
Flx_invLaplace 54357
Flx_is_l_pow 8144
Flx_is_smooth 74256
Flx_is_smooth_pre 118359
Flx_is_smooth_squarefree 126522
Flx_is_squarefree 9180822
Flx_lgrenormalizespec 2135054
Flx_matFrobenius 0
Flx_matFrobenius_pre 86563
Flx_mod_Xn1 31508
Flx_mod_Xnm1 4907964
Flx_mul 27786440
Flx_mul_pre 381230233
Flx_mulhigh_i 948167
Flx_mullimb 1190741446
Flx_mullimb_ok 3396071957
Flx_mulspec 386826069
Flx_mulspec_Kronecker 7355373
Flx_mulspec_basecase 349077503
Flx_mulspec_halfmulii 5463
Flx_mulspec_mulii 10147
Flx_mulspec_mulii_inflate 294036
Flx_mulspec_quartmulii 97179
Flx_neg 3264506
Flx_neg_inplace 1780025
Flx_negspec 3264489
Flx_normalize 64828374
Flx_powu 0
Flx_powu_pre 3932
Flx_recip 0
Flx_recipspec 7289517
Flx_red 1880897
Flx_rem 42225476
Flx_rem_basecase 801719684
Flx_rem_pre 925869697
Flx_renormalize 2159319913
Flx_rescale 1117
Flx_resultant 4730176
Flx_resultant_basecase_pre 14594305
Flx_resultant_pre 14596559
Flx_shift 27399265
Flx_shiftip 635064452
Flx_splitting 147440
Flx_sqr 354698
Flx_sqr_pre 277324280
Flx_sqrspec 277403662
Flx_sqrspec_Kronecker 695077
Flx_sqrspec_basecase 276594160
Flx_sqrspec_halfsqri 136
Flx_sqrspec_quartsqri 10218
Flx_sqrspec_sqri 2070
Flx_sqrspec_sqri_inflate 11814
Flx_sub 138632472
Flx_subspec 898861
Flx_to_Flv 66650330
Flx_to_FlxX 71405
Flx_to_ZX 38300231
Flx_to_ZX_inplace 36548149
Flx_to_int_halfspec 468590
Flx_to_int_quartspec 204576
Flx_translate1 17052
Flx_translate1_basecase 29140
Flx_triple 1049261
Flx_unscale 0
Flx_val 4473752
Flx_valrem 28499929
Flxn_div 56330
Flxn_div_pre 56348
Flxn_exp 0
Flxn_expint 109395
Flxn_inv 1037
Flxn_mul 75831
Flxn_mul_pre 5180162
Flxn_mulhigh 526200
Flxn_recip 217368
Flxn_red 6361974
Flxn_sqr 0
Flxn_sqr_pre 0
FlxqC_Flxq_mul 0
FlxqC_red_pre 234845
FlxqM_Flxq_mul 0
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
FlxqV_dotproduct 0
FlxqV_dotproduct_pre 113589
FlxqX_dotproduct 1918
Flxq_autpow 7
Flxq_autpow_msqr 20697
Flxq_autpow_pre 69452
Flxq_autpow_sqr 47318
Flxq_autpowers 1667
Flxq_autsum 0
Flxq_autsum_mul 112484
Flxq_autsum_pre 98772
Flxq_autsum_sqr 105119
Flxq_auttrace 0
Flxq_auttrace_mul 780191
Flxq_auttrace_pre 959898
Flxq_auttrace_sqr 652852
Flxq_charpoly 3625
Flxq_conjvec 20
Flxq_div 237891
Flxq_div_pre 2416846
Flxq_easylog 519357
Flxq_inv 335766
Flxq_inv_pre 4286509
Flxq_invsafe 669774
Flxq_invsafe_pre 5428820
Flxq_is2npower 0
Flxq_issquare 404492
Flxq_log 164210
Flxq_lroot 0
Flxq_lroot_fast 0
Flxq_lroot_fast_pre 113589
Flxq_lroot_pre 25053
Flxq_matrix_pow 399
Flxq_matrix_pow_pre 170651
Flxq_minpoly 45937
Flxq_minpoly_pre 809670
Flxq_mul 13192362
Flxq_mul_pre 189908036
Flxq_norm 443145
Flxq_order 97328
Flxq_pow 948307
Flxq_pow_Frobenius 23259591
Flxq_pow_init 0
Flxq_pow_init_pre 28
Flxq_pow_pre 24323030
Flxq_pow_table 0
Flxq_pow_table_pre 4393
Flxq_powers 232015
Flxq_powers_pre 22437504
Flxq_powu 488334
Flxq_powu_pre 24181205
Flxq_sqr 2763153
Flxq_sqr_pre 276355317
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_sqrtl_spec_pre 37666
Flxq_sqrtn 23094
Flxq_sqrtn_spec_pre 21900
Flxq_sumautsum_msqr 40915
Flxq_sumautsum_pre 210713
Flxq_sumautsum_sqr 295314
Flxq_trace 4696
Flxq_transmul 4212846
Flxq_transmul_init 1746496
RgXV_to_FlxV 7
RgX_to_Flx 2205401
Rg_to_F2 1710155
Rg_to_Fl 72934989
Rg_to_Flxq 3588248
ZM_unpack_FlxM 23421
ZM_unpack_FlxM_bits 58160
ZXT_to_FlxT 3813367
ZXV_to_FlxV 0
ZX_to_Flx 170998490
Z_mod2BIL_Flx 305850
Z_mod2BIL_Flx_2 308780
Z_mod2BIL_Flx_3 0
Z_to_Flx 7556627
ZpX_invLaplace_init 497
_Fl2_mul 1924030
_Fl2_pow 672140
_Fl2_rand 113882
_Fl2_sqr 4907087
_Flx_add 0
_Flx_composedsum 3882
_Flx_divrem 0
_Flx_mul 11787220
_Flx_one 0
_Flx_pow 0
_Flx_sqr 0
_Flxq_add 389834
_Flxq_equal0 69139
_Flxq_inv 9460
_Flxq_mul 148713419
_Flxq_neg 366572
_Flxq_one 22438451
_Flxq_pow 23252178
_Flxq_powu 68
_Flxq_powu_i 22926791
_Flxq_rand 6582
_Flxq_red 1550928
_Flxq_rmul 1461838
_Flxq_s 6567
_Flxq_sqr 268554960
bounded_order 395408
gener_Flxq 7201
get_Fl_threshold 2335750501
get_Flx_red 989896826
get_Flxq_field 68902
get_Flxq_star 283438
init_invlaplace 12514
int_to_Flx 12217
int_to_Flx_half 507058
int_to_Flx_quart 107397
kron_pack_Flx_spec 53168
kron_pack_Flx_spec_2 3389
kron_pack_Flx_spec_3 0
kron_pack_Flx_spec_bits 20998436
kron_pack_Flx_spec_half 688104
kron_unpack_Flx 42785
kron_unpack_Flx_2 2930
kron_unpack_Flx_3 0
kron_unpack_Flx_bits_narrow 5664227
kron_unpack_Flx_bits_wide 5668464
matJ2_FlxM 13
matid2_FlxM 911
maxbitcoeffpol 8484071
mkF2 7320557
monomial_Flx 941343
random_Flx 2646072
set_Flxq 68922
set_Flxq_pre 70244566
translate_basecase 42307
zero_FlxC 0
zero_FlxM 0
zero_FlxM_copy 0
zl_Xp1_powu 12017
zlx_translate1 25259
zx_to_Flx 6401070

Generated by: LCOV version 1.16