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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - FpX.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30256-57c6c2b57f) Lines: 1943 2120 91.7 % Date: 2025-05-09 09:19:30 Functions: 213 227 93.8 % Legend: Lines: hit not hit

Function Name	Hit count
Fp2_norm	18961
Fp2_sqrt	19392
FpVV_polint_tree	15
FpV_FpM_polint	0
FpV_inv	34063
FpV_invVandermonde	31621
FpV_polint	22
FpV_producttree	31636
FpV_roots_to_pol	93334
FpXC_FpXQV_eval	1470
FpXC_FpXQ_eval	588
FpXM_FpXQV_eval	315
FpXM_FpX_mul2	36106
FpXM_mul2	17253
FpXQM_autsum	147
FpXQM_autsum_mul	315
FpXQM_autsum_sqr	217
FpXQ_autpow	4439
FpXQ_autpow_msqr	42
FpXQ_autpow_sqr	4533
FpXQ_autpowers	1750
FpXQ_autsum	2770
FpXQ_autsum_mul	3056
FpXQ_autsum_sqr	2896
FpXQ_auttrace	431
FpXQ_auttrace_mul	360
FpXQ_auttrace_sqr	317
FpXQ_charpoly	15
FpXQ_conjvec	8
FpXQ_div	533285
FpXQ_inv	1099918
FpXQ_invsafe	1099916
FpXQ_issquare	401223
FpXQ_log	707993
FpXQ_matrix_pow	66289
FpXQ_minpoly	13618
FpXQ_mul	11051209
FpXQ_norm	363819
FpXQ_order	1814
FpXQ_pow	1017640
FpXQ_pow_Frobenius	296744
FpXQ_powers	383305
FpXQ_powu	608335
FpXQ_red	17807359
FpXQ_sqr	6284713
FpXQ_sqrt	78589
FpXQ_sqrtl_spec	543
FpXQ_sqrtn	1222
FpXQ_sqrtn_spec	858
FpXQ_sumautsum	1266
FpXQ_sumautsum_msqr	1123
FpXQ_sumautsum_sqr	2264
FpXQ_trace	21074
FpXQ_transmul	7160
FpXQ_transmul_init	1654
FpXT_red	1663908
FpXT_sqr	7602
FpXV_FpX_fromdigits	4564
FpXV_chinese	588
FpXV_chinese_tree	588
FpXV_chinesetree	588
FpXV_factorback	23258
FpXV_invdivexact	588
FpXV_prod	309383
FpXV_producttree	588
FpXV_producttree_dbl	32224
FpXV_red	404349
FpXV_sqr	588
FpXXkX_FpXXk_divexact	1225
FpXXkX_FpXXk_divexact_s	1449
FpXXkX_FpXXk_divides_s	12628
FpXXk_FpX_div	588
FpXXk_FpX_div_i	238
FpXXk_content	3983
FpXXk_content_FpX	5789
FpXXk_divexact_i	287
FpXXk_divexact_s	6097
FpXXk_divides	3507
FpXXk_divides_i	4718
FpXXk_divides_s	141190
FpXXk_gcd_i	14182
FpXXk_primpart_FpX	1904
FpXXk_rec	1904
FpX_FpV_multieval	0
FpX_FpV_multieval_tree	31634
FpX_FpXM_qmul	17162
FpX_FpXQV_eval	411282
FpX_FpXQ_eval	795735
FpX_FpXV_multirem	0
FpX_FpXV_multirem_dbl_tree	32223
FpX_FpXV_multirem_tree	588
FpX_Fp_add	891349
FpX_Fp_add_shallow	0
FpX_Fp_div	614395
FpX_Fp_mul	5623734
FpX_Fp_mul_to_monic	137959
FpX_Fp_mulspec	5638297
FpX_Fp_sub	588290
FpX_Fp_sub_shallow	11146
FpX_Frobenius	445370
FpX_Laplace	688
FpX_Newton	523879
FpX_add	16055503
FpX_addmulmul	87863
FpX_center	313489
FpX_center_i	1241923
FpX_chinese_coprime	0
FpX_convol	994
FpX_deriv	1632352
FpX_digits	11403
FpX_disc	42
FpX_div_by_X_x	164932
FpX_divrem	14311078
FpX_divrem_Barrett	815685
FpX_divrem_Barrettspec	816430
FpX_divrem_basecase	65661960
FpX_divu	8610
FpX_dotproduct	61174
FpX_eval	963817
FpX_extgcd	1441601
FpX_extgcd_basecase	586896
FpX_extgcd_halfgcd	13757
FpX_extresultant	77
FpX_extresultant_basecase	24
FpX_fromNewton	11446
FpX_gcd	1021298
FpX_gcd_basecase	52884
FpX_gcd_check	807
FpX_get_red	1066668
FpX_halfgcd	974
FpX_halfgcd_all	16687
FpX_halfgcd_all_i	16547
FpX_halfres	106
FpX_halfres_basecase	33799
FpX_halfres_i	52759
FpX_halfres_split	18960
FpX_halfres_update	3749
FpX_halve	92631
FpX_integ	0
FpX_integXn	56163
FpX_invBarrett	5536
FpX_invBarrett_Newton	1508
FpX_invBarrett_basecase	3975
FpX_invLaplace	382
FpX_is_squarefree	715872
FpX_matFrobenius	31494
FpX_mul	26376693
FpX_mulhigh_i	116133
FpX_mulspec	9203055
FpX_mulu	1064116
FpX_neg	467407
FpX_normalize	1849023
FpX_powu	318342
FpX_recipspec	1638725
FpX_red	95475237
FpX_rem	71094630
FpX_rescale	178949
FpX_resultant	416987
FpX_resultant_basecase	3973
FpX_shift	988411
FpX_sqr	6477554
FpX_sub	14601135
FpX_subspec	15417562
FpX_valrem	254698
FpXk_gcd	595
FpXk_mul	1603
FpXk_red	4516967
FpXk_renormalize	72751
FpXk_sub	3718554
FpXn_div	6412
FpXn_exp	0
FpXn_expint	17361
FpXn_inv	6412
FpXn_mul	2567053
FpXn_mulhigh	59970
FpXn_recip	534840
FpXn_red	205706
FpXn_sqr	0
Fp_FpXQ_log	544095
Fp_FpX_sub	25657
Fp_issquare	1335844
Fp_neg_FpX	1025
Fp_red_FpX	21944
FqV_inv	0
Fq_ispower	70
Fq_issquare	1630801
Fq_log	2193468
RgXXk_modXn	6496
RgXXk_shift	6496
RgXk_var_lowest	16142
Rg_is_FpXk	0
Rg_to_FpXk	71897
ZX_lgrenormalizespec	1663624
Z_to_FpX	1726
_FpXQ_add	3039971
_FpXQ_cmul	3457175
_FpXQ_easylog	413
_FpXQ_mul	1931430
_FpXQ_one	932760
_FpXQ_pow	281659
_FpXQ_rand	714
_FpXQ_red	938169
_FpXQ_sqr	5369237
_FpXQ_sub	52941
_FpXQ_zero	4095
_FpX_add	20062
_FpX_divrem	134778
_FpX_mul	371084
_FpX_one	0
_FpX_pow	35493
_FpX_red	0
_FpX_sqr	86660
_FpX_zero	0
bounded_order	4341
gc_chinese	588
gener_FpXQ	7030
gener_FpXQ_i	83407
gener_FpXQ_local	83369
get_FpXQ_algebra	10199
get_FpXQ_star	2807
get_FpX_algebra	0
get_FpX_red	85415132
matJ2_FpXM	8
matid2_FpXM	24
random_FpX	256337
to_Flx	44492212
to_Flxq	2133815

Generated by: LCOV version 1.16