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 - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 1865 1987 93.9 % Date: 2025-09-17 09:23:49 Functions: 105 105 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	105
divRq	301
mulqq	1127
addRq	1288
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	18550
div_rfrac_scal	32139
div_polmod_same	36764
div_scal_rfrac	37767
sqr_ser_part	112759
mul_gen_rfrac	161432
inv_polmod	189628
fix_rfrac	207739
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	316386
div_intmod_same	341933
gconj	390135
add_ser_scal	408206
sqr_polmod	419385
div_ser	771538
sub_intmod_same	1027929
div_rfrac	1187237
divpT	1204917
div_ser_scal	1338593
gdivgunextu	1583873
Qdivis	1592129
divRc	2286910
mul_intmod_same	2629268
mul_polmod	2674945
mulcxmI	2985899
add_rfrac	3018271
gsubsg	3238200
mul_polmod_scal	3238383
add_intmod_same	3344852
ser_add	3581430
addQp	4762960
mulTp	4984915
mulcxpowIs	5563755
fill_ser	5693993
init_ser	5706368
quad_polmod_mul	5860097
div_T_scal	7126738
_serprec	7162062
mul_self_scal	7647882
mul_rfrac	7910285
mul_polmod_same	8528815
add_rfrac_scal	8811954
div_scal_pol	9257065
div_scal_T	9264762
rfrac_denom_mul_scal	9959379
mul_rfrac_scal	10454828
mulcIR	11648246
gdivgs	12999785
divpp	13212496
addsub_polmod_scal	13455136
addsub_frac_i	14120808
setfrac	14999743
mulcxI	15630512
mulpp	17502943
addsub_pp	19972150
divcR	23353205
mkpadic_mod	24593110
conj_i	31490079
ginv	36584716
mulrfrac	37790091
addsub_frac	40598594
add_scal	42804830
gred_rfrac2	44825494
Leading_is_neg	57792547
gred_rfrac_simple	57796615
gdivgu	60355941
utoi_sign	64531884
Qdivii	141940688
gmul2n	143697294
Qdiviu	148699524
mul_scal	154327721
transtype	154401681
divrunextu	224475773
gmulsg	236629252
gaddsg	270738660
mulcc	279011943
gmulug	282636569
addRc	307236354
mulRc	354478539
gdiv	439020205
gsqr	1183886308
gsub	2885496518
gadd	6138262313
gmul	8688265376

Generated by: LCOV version 1.16