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 30672-116f3d5b0e) Lines: 2553 2925 87.3 %
Date: 2026-02-06 09:23:51 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 2069
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 3923
Flxq_pow_table_pre 4392
Flxq_trace 4696
Flx_FlxqV_eval 5082
Flx_mulspec_halfmulii 5463
_Flxq_rand 6567
_Flxq_s 6567
Flx_FlxM_qmul 6927
FlxM_mul2 7099
gener_Flxq 7201
Flx_is_l_pow 8174
Flx_halfres_update_pre 9405
_Flxq_inv 9460
Flv_inv_pre 9644
Flx_mulspec_mulii 10142
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 12215
init_invlaplace 12514
Flx_halve 14026
Flx_diff1 14448
Flx_translate1 17108
Flx_halfres_split 19964
Flxq_autpow_msqr 20696
Flxq_sqrtn_spec_pre 21900
FlxM_eval_powers_pre 22302
Flxq_sqrtn 23094
Flx_invBarrett_Newton 23160
ZM_unpack_FlxM 23421
Flxq_lroot_pre 25053
zlx_translate1 25259
FlxM_Flx_mul2 26000
Flx_Laplace 27346
Flx_composedsum 27547
FlxV_composedsum 28962
Flx_translate1_basecase 29202
Flx_mod_Xn1 31510
FlxV_Flc_mul 34482
Fl_Flxq_log 35543
Flxq_sqrtl_spec_pre 37667
Flxq_sumautsum_msqr 40915
translate_basecase 42367
kron_unpack_Flx 42785
Flxq_minpoly 45937
FlxM_pack_ZM 46835
Flxq_autpow_sqr 47313
Flv_inv_indir 52215
kron_pack_Flx_spec 53168
Flx_Newton 54096
Flx_invLaplace 54364
Flxn_div 56321
Flxn_div_pre 56346
ZM_unpack_FlxM_bits 58160
Fl2_sqrt_pre 65849
get_Flxq_field 68902
set_Flxq 68922
_Flxq_equal0 69139
Flxq_autpow_pre 69448
Flx_to_FlxX 71405
Flx_is_smooth 74256
Flxn_mul 75843
Fl2_sqrtn_pre 76015
FlxM_mul_Kronecker_i 81581
FlxqM_mul_Kronecker 81581
FlxqM_red_pre 81581
Flx_matFrobenius_pre 86564
Flx_Frobenius 86619
Flx_mulspec_quartmulii 97165
Flxq_order 97328
Flxq_autsum_pre 98768
FlxC_to_ZXC 104060
Flv_Flm_polint 104561
Flxq_autsum_sqr 105110
int_to_Flx_quart 107385
Flx_fromNewton 109392
Flxn_expint 109397
Flxq_autsum_mul 112472
FlxqV_dotproduct_pre 113589
Flxq_lroot_fast_pre 113589
_Fl2_rand 113824
FlxM_pack_ZM_bits 116239
Flx_is_smooth_pre 118511
Flx_is_smooth_squarefree 126724
Fl2_norm_pre 127550
Flx_invBarrett_basecase 134390
Flx_extgcd_halfgcd 146650
Flx_splitting 147381
Flx_Fl_sub 151686
Flv_invVandermonde 153445
Flx_invBarrett_pre 158851
Flx_inflate 160445
Flxq_log 164210
Flxq_matrix_pow_pre 170659
FlxV_to_Flm 171878
Fl2_inv_pre 197207
Flx_to_int_quartspec 204548
Flxq_sumautsum_pre 210713
Flxn_recip 217354
Flxq_sqrt 230547
Flxq_sqrt_pre 230547
Flxq_powers 232002
FlxqC_red_pre 234845
Flxq_div 237891
get_Flxq_star 283438
Flx_mulspec_mulii_inflate 294049
FlxT_red 294670
Flxq_sumautsum_sqr 295314
Z_mod2BIL_Flx 305863
Z_mod2BIL_Flx_2 308793
FlxC_eval_powers_pre 325146
Flxq_inv 335770
Flx_sqr 354694
_Flxq_neg 366572
_Flxq_add 389834
bounded_order 395387
FlxV_to_FlxX 397977
Flxq_issquare 404492
Flx_addmulmul 416798
Flx_deflate 420777
Flx_integXn 422784
Flxq_norm 443141
Fl2_equal1 449634
Flx_to_int_halfspec 468590
Flxq_powu 488330
int_to_Flx_half 507058
Flxq_easylog 519337
Flxn_mulhigh 526073
Flx_blocks 526128
Flx_eval2BILspec 603301
Flx_divrem_Barrett 604718
FlxV_to_ZXV 606830
Flxq_auttrace_sqr 652830
Flxq_invsafe 670496
_Fl2_pow 671245
Fl2_pow_pre 671250
kron_pack_Flx_spec_half 688104
Flx_sqrspec_Kronecker 695089
Flxq_auttrace_mul 780184
Flx_Flxq_eval 791291
Flxq_minpoly_pre 809630
Flv_roots_to_pol 842141
Flx_extgcd 856787
Flx_halfgcd_pre 873209
Flx_subspec 898819
Flx_divrem_Barrettspec 906293
monomial_Flx 941288
Flx_mulhigh_i 948057
Flxq_pow 948199
Flxq_auttrace_pre 959862
Flx_triple 1049261
Flx_halfgcd_all_i 1126851
Flx_halfgcd_all_pre 1126855
Flx_halfres_basecase 1133928
Flx_halfres_i 1153895
_Flxq_rmul 1461838
Flv_polint 1485150
_Flxq_red 1550928
Rg_to_F2 1710144
Flv_inv 1744431
Flv_producttree 1745633
Flxq_transmul_init 1746396
Flv_inv_i 1756444
Flx_neg_inplace 1780025
Flx_Flv_multieval_tree 1785933
Flx_red 1880403
_Fl2_mul 1923944
Fl2_mul_pre 1952988
Flx_lgrenormalizespec 2134652
RgX_to_Flx 2249911
Flxq_div_pre 2416846
Flx_double 2443925
Flx_Flxq_eval_pre 2444628
FlvV_polint_tree 2587451
random_Flx 2645956
Flxq_sqr 2763158
FlxV_to_ZXV_inplace 3031585
Flx_negspec 3264436
Flx_neg 3264465
Rg_to_Flxq 3588211
Flx_addshift 3729093
ZXT_to_FlxT 3813096
Flxq_transmul 4212840
Flxq_inv_pre 4286481
Flx_val 4480159
Flx_resultant 4731760
Flx_mod_Xnm1 4908153
_Fl2_sqr 4911478
Fl2_sqr_pre 4911481
Flxn_mul_pre 5179702
Flxq_invsafe_pre 5429576
kron_unpack_Flx_bits_narrow 5663807
kron_unpack_Flx_bits_wide 5668701
Flx_extgcd_basecase 6286347
Flx_extgcd_pre 6286351
Flxn_red 6361128
zx_to_Flx 6429070
Flx_addspec 7259598
Flx_recipspec 7288947
mkF2 7324649
Flx_Fl_mul 7327660
Flx_mulspec_Kronecker 7355495
Z_to_Flx 7556510
maxbitcoeffpol 8484095
Flx_is_squarefree 9181082
Flx_Fl_add 9846708
_Flx_mul 11790387
Flx_Fl_mul_to_monic 11857410
Flx_blocks_Flm 12968973
FlxV_to_Flm_lg 12969246
Flx_FlxqV_eval_pre 13168166
Flxq_mul 13192560
Flx_Frobenius_pre 13813988
Flx_get_red 14504173
Flx_resultant_basecase_pre 14596982
Flx_resultant_pre 14598911
Flx_Fl_mul_pre 18292179
Flv_inv_pre_inplace 19465050
Flx_eval 20448056
kron_pack_Flx_spec_bits 20997557
Flv_inv_pre_indir 21196592
Fl_to_Flx 21962310
Flxq_powers_pre 22438223
_Flxq_one 22438867
_Flxq_powu_i 22927350
Flx_deriv 22981721
_Flxq_pow 23159968
Flxq_pow_Frobenius 23167377
Flxq_powu_pre 24181728
Flxq_pow_pre 24230683
Flv_to_Flx 25489594
Flx_shift 27399061
Flx_equal 27727076
Flx_mul 27808124
Flx_valrem 28521745
Flx_divrem 30451094
Flx_gcd 35037963
Flx_to_ZX_inplace 36575159
Flx_div_by_X_x 36617430
Flx_to_ZX 38300297
Flx_rem 42233399
Flx_eval_powers_pre 48658337
Flx_divrem_basecase 62289881
Flx_normalize 64876258
Flx_add 66153360
Flx_to_Flv 66652211
set_Flxq_pre 70154304
Rg_to_Fl 73210259
Flx_divrem_pre 79735163
Flx_gcd_basecase 85806793
Flx_gcd_pre 87468293
Flx_get_red_pre 97908583
Flx_eval_pre 136200714
Flx_sub 138654950
_Flxq_mul 148520678
ZX_to_Flx 171004881
Flxq_mul_pre 189725118
_Flxq_sqr 268576013
Flxq_sqr_pre 276377183
Flx_sqrspec_basecase 276682897
Flx_sqr_pre 277345732
Flx_sqrspec 277458478
Flx_mulspec_basecase 348986770
Flx_mul_pre 381141863
Flx_mulspec 386751929
Flx_shiftip 635011635
Flx_rem_basecase 801936329
Flx_rem_pre 925982890
get_Flx_red 990016101
Flx_mullimb 1188893489
Flx_renormalize 2159721763
get_Fl_threshold 2336238001
Flx_mullimb_ok 3400267322

Generated by: LCOV version 1.16